US3411259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal roofing
Assignee: Revere Copper and Brass Inc
•
Filing: 1966-06-09
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Granted: 1968-11-19
•
Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Ivar E Anderson
- 👤 William J Heidrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:10
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; E04D1/265; E04D1/29; E04D1/2907; E04D1/2914; E04D1/2918; E04D13/00; E04D13/04; E04D13/0404; E04D13/0445; E04D3/00; E04D3/36; E04D3/361; E04D3/362; E04D3/40; E04D2013/045; E04D2013/0454
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |